brooks



2 sheetssheet 1.

G. D. BROOKS. Sheet-Metal Seaming-Maohine.

Patented Mar. 23, 1880..

@nfiauinn,

. BEELUBRUUKE- iinwm,

W 6t WWW N- PETERS, PHOTOLJTHOGRAPNER, WASHINGTON D C -2 Shgets-Sheet 2.

BROOKS. Sheet-M seaming-Machine.

No. 225,685. Pater lied Mar. 23, 1880.

' Fig, i.

N FEIERS, PHOTO UTHOGRAPNEIL WASNINGI'QN. D. C.

NITED STATEs PATENT OFFICE.

GEORGE D. BROOKS, OF BALTIMORE, MARYLAND.

SHEET-M ETAL-SEAMING MACHINE.

SPECIFICATION forming part of Letters Patent No. 225,685, dated March 23, 1880. Application filed February 3, 1880.

To all whom it may concern:

Be it known that I, GEORGE D. BnooKs, of Baltimore city, State of Maryland, have invented certain new and useful Improvements in Sheet Metal Seaming Machines; and I hereby declare the same to be fully, clearly, and exactly described as follows, reference being had to the accompanying drawings, in which Figure 1 is a side elevation of the device; Fig. 2, a central sectional view of the headingdie; Fig. 3, a similar view of the die for forming the open end of the can; and Fig. 4, an enlarged view, showing the operation of the dies in heading and truiug a can.

My present invention relates to the manufacture of what are known as open-top cans, in contradistinction to those which are provided with a head having a central opening designed to be closed by a cap after the can is filled.

While the machine about to be described is designed especially for forming open-top cans it is equally applicable to the manufacture of cap-cans whose heads are inserted in the manner about to be described.

My present invention consists in certain improvements upon that for which Letters Patent were granted to me July 8, 1873, No. 140,678, in which is described a machine for forming cans whose cylindrical walls are crimped at the ends over the heads, instead of, as usual, the reverse.

The operation of the patented machine may briefly be described as consisting in a simultaneous flaring of both ends of the can, after which the heads were inserted, and the edges of the cylindrical walls were then simultaneously crimped over the heads, which latter were finally soldered.

My present invention has for its object to construct an open-top can of that class in which the walls are crimped over the lid, and incidentally, in the act of crimping the walls, to round and true up the open end, to facilitate the insertion of its head after the can is filled.

In the accompanying drawings, A is the mainframe of the machine, in whichis mounted, at B, the stationary die a, and in a line with its axis, at B, the reciprocating die a. The latter is normally retracted by means of a spring, D, but may be driven toward the. die a by any suitable mechanism acting upon the head 0.

E is a support for the canbody, provided with a pair of V-shaped yokes, c 0, adjustable toward the axis of the dies, the adjustment being effected by raising or lowering the shank F, and securing it by means of the screw f.

The die a is provided with a bell-shaped lip, h, and a ring, 2', by preference made removable therefrom, so as to be renewed when worn. A disk, 0, is mounted 011 a shaft, 0, passing through the die a, as shown, and is normally pressed outward by means of a spring, G.

The die 01 has a tapering (by preference a hemispherical) projection, b, and a bell-shaped lip, l, which meets the edge m of the projection 12 in a sharp groove, which is truly circular and of a size slightly larger in circumference than the can-head.

A hole, (1, opens outward from the interior of the die a, and similar holes (1 are formed in the die at. These serve to admit of the escape of the air and powdered resin as the can is headed and crimped. Such is the construction of the machine.

Its mode of operation is as follows: The body of the can being formed as usual, the ends are slightly flared to permit of the insertion of the heads. These are of the usual construction, except that their crimped edges come inside of the walls of the can instead of outside. One of the heads being inserted the can is laid on the support E, and the die a is caused to approach the die a. The yielding disk 0 serves to hold the head in place pending the act of crimping, which is effected by means of the bell-shaped lip h and ring 1'. The flared lip of the can-body meets the bell-shaped lip of the former, and is turned over upon the head, and its edges are pressed closely home upon the latter by means of the ring 2'. Pending this operation the opposite open end of the can-body enters the groove between the projection b and lip m, and is trued up to a perfect circle. The groove subserves a double end. Incidentally to truiug the end of the can, as described, it prevents it from being pressed out of shape or battered by the pressure of crimping the head in the opposite end.

This feature is of vital importance, as the least irregularity or unevenness in the end of the can adds greatly to the difficnlty of inserting; the head, an operation which, in the case of open-top cans, is performed by the packer and not by the can-maker.

By the described machine the cans are trned up in the act of heading, so that the heads fit accurately in the open ends, and no time is lost in inserting them.

After filling the cans and inserting the head or cover the edge of the body is crimped down by means of a duplicate of the die a, and the head is finally soldered.

What I claim is- 1. In a can-making machine, a die having 7 a beveled lip for crimping the ed ge of the body upon the head, in combination with a second die, located in the axis of the first and having a groove for truing up the end of the can, substantially as described.

2. In a can-making machine, a pair of dies adapted, as described, respectively, to crimp and true the ends of the can-body, in combination with an intermediate holder for the can, as set forth.

3. In a can-making machine, a crimping-die having a beveled lip for folding the edge of the body upon the cover, in combination with a yielding cap-holder, as set forth.

4:. In-a can-making machine, a truing-die having a groove to receive the end of the can, and one or more perforations, d, as and for the purpose set forth.

5. In a can-making machine, a truing-die for shaping the open end of the can, in combination with a crimping-die having a yieldingcap-holder and an intermediate support for the can, as set forth.

6. In a can-making machine, a crimping-die having a removable ring, 6, substantially as described.

7. The process herein described of forming GEO. D. BROOKS.

Witnesses R. D. WILLIAMS, JOHN (LGITTINGER. 

